root/GPXSee
1
0
Fork 0
mirror of https://github.com/tumic0/GPXSee.git synced 2024-11-27 21:24:47 +01:00
Code Issues Projects Releases Activity

Added initial WMTS support

Browse Source
This commit is contained in:
Martin Tůma 2018-02-20 23:37:19 +01:00
parent 3202fc4c15
commit 1bc4833a81
18 changed files with 711 additions and 155 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gpxsee.pro
View File

@ -116,7 +116,10 @@ HEADERS += src/config.h \
src/map/primemeridian.h \
src/map/linearunits.h \
src/map/ct.h \
src/map/mapsource.h
src/map/mapsource.h \
src/map/tileloader.h \
src/map/wmtsmap.h \
src/map/wmts.h
SOURCES += src/main.cpp \
src/common/coordinates.cpp \
src/common/rectc.cpp \
@ -202,7 +205,10 @@ SOURCES += src/main.cpp \
src/map/angularunits.cpp \
src/map/primemeridian.cpp \
src/map/linearunits.cpp \
src/map/mapsource.cpp
src/map/mapsource.cpp \
src/map/tileloader.cpp \
src/map/wmtsmap.cpp \
src/map/wmts.cpp
RESOURCES += gpxsee.qrc
TRANSLATIONS = lang/gpxsee_cs.ts \
lang/gpxsee_sv.ts \

7
src/GUI/app.cpp
View File

@ -4,7 +4,8 @@
#include <QFileOpenEvent>
#include <QNetworkProxyFactory>
#include <QLibraryInfo>
#include "map/onlinemap.h"
#include "map/wmts.h"
#include "map/tileloader.h"
#include "map/downloader.h"
#include "map/ellipsoid.h"
#include "map/gcs.h"
@ -36,7 +37,9 @@ App::App(int &argc, char **argv) : QApplication(argc, argv),
#endif // Q_OS_MAC
QNetworkProxyFactory::setUseSystemConfiguration(true);
OnlineMap::setDownloader(new Downloader(this));
Downloader *dl = new Downloader(this);
TileLoader::setDownloader(dl);
WMTS::setDownloader(dl);
OPENGL_SET_SAMPLES(4);
loadDatums();
loadPCSs();

2
src/map/atlas.h
View File

@ -33,7 +33,7 @@ public:
void unload();
bool isValid() const {return _valid;}
const QString &errorString() const {return _errorString;}
QString errorString() const {return _errorString;}
static bool isAtlas(const QString &path);

10
src/map/downloader.cpp
View File

@ -61,7 +61,7 @@ bool Downloader::saveToDisk(const QString &filename, QIODevice *data)
QFile file(filename);
if (!file.open(QIODevice::WriteOnly)) {
qWarning("Error writing map tile: %s: %s\n",
qWarning("Error writing file: %s: %s\n",
qPrintable(filename), qPrintable(file.errorString()));
return false;
}
@ -80,11 +80,11 @@ void Downloader::downloadFinished(QNetworkReply *reply)
QUrl origin = reply->request().attribute(ATTR_ORIGIN).toUrl();
if (origin.isEmpty()) {
_errorDownloads.insert(url);
qWarning("Error downloading map tile: %s: %s\n",
qWarning("Error downloading file: %s: %s\n",
url.toEncoded().constData(), qPrintable(reply->errorString()));
} else {
_errorDownloads.insert(origin);
qWarning("Error downloading map tile: %s -> %s: %s\n",
qWarning("Error downloading file: %s -> %s: %s\n",
origin.toEncoded().constData(), url.toEncoded().constData(),
qPrintable(reply->errorString()));
}
@ -99,11 +99,11 @@ void Downloader::downloadFinished(QNetworkReply *reply)
if (location == url) {
_errorDownloads.insert(url);
qWarning("Error downloading map tile: %s: "
qWarning("Error downloading file: %s: "
"redirect loop\n", url.toEncoded().constData());
} else if (level >= MAX_REDIRECT_LEVEL) {
_errorDownloads.insert(origin);
qWarning("Error downloading map tile: %s: "
qWarning("Error downloading file: %s: "
"redirect level limit reached\n",
origin.toEncoded().constData());
} else {

3
src/map/map.h
View File

@ -40,6 +40,9 @@ public:
void setBackgroundColor(const QColor &color) {_backgroundColor = color;}
virtual bool isValid() const {return true;}
virtual QString errorString() const {return QString();}
signals:
void loaded();

2
src/map/maplist.cpp
View File

@ -13,7 +13,7 @@ bool MapList::loadSource(const QString &path, bool dir)
MapSource ms;
Map *map;
if (!ms.loadFile(path, &map)) {
if (!(map = ms.loadFile(path))) {
if (dir)
_errorString += path + ": " + ms.errorString() + "\n";
else

44
src/map/mapsource.cpp
View File

@ -1,6 +1,7 @@
#include <QFile>
#include <QXmlStreamReader>
#include "onlinemap.h"
#include "wmtsmap.h"
#include "mapsource.h"
@ -121,13 +122,17 @@ RectC MapSource::bounds(QXmlStreamReader &reader)
return RectC(Coordinates(left, top), Coordinates(right, bottom));
}
void MapSource::map(QXmlStreamReader &reader, Map **map)
Map *MapSource::map(QXmlStreamReader &reader)
{
QString name, url;
QString name, url, format, layer, style, tileMatrixSet;
Range z(ZOOM_MIN, ZOOM_MAX);
RectC b(Coordinates(BOUNDS_LEFT, BOUNDS_TOP),
Coordinates(BOUNDS_RIGHT, BOUNDS_BOTTOM));
const QXmlStreamAttributes &attr = reader.attributes();
bool wmts = (attr.hasAttribute("type") && attr.value("type") == "WMTS")
? true : false;
while (reader.readNextStartElement()) {
if (reader.name() == "name")
name = reader.readElementText();
@ -139,34 +144,53 @@ void MapSource::map(QXmlStreamReader &reader, Map **map)
} else if (reader.name() == "bounds") {
b = bounds(reader);
reader.skipCurrentElement();
} else
} else if (reader.name() == "format")
format = reader.readElementText();
else if (reader.name() == "layer")
layer = reader.readElementText();
else if (reader.name() == "style")
style = reader.readElementText();
else if (reader.name() == "tilematrixset")
tileMatrixSet = reader.readElementText();
else
reader.skipCurrentElement();
}
*map = reader.error() ? 0 : new OnlineMap(name, url, z, b);
if (reader.error())
return 0;
else if (wmts)
return new WMTSMap(name, url, format, layer, style, tileMatrixSet);
else
return new OnlineMap(name, url, z, b);
}
bool MapSource::loadFile(const QString &path, Map **map)
Map *MapSource::loadFile(const QString &path)
{
QFile file(path);
QXmlStreamReader reader;
Map *map = 0;
if (!file.open(QFile::ReadOnly | QFile::Text)) {
_errorString = file.errorString();
return false;
return map;
}
reader.setDevice(&file);
if (reader.readNextStartElement()) {
if (reader.name() == "map")
MapSource::map(reader, map);
map = MapSource::map(reader);
else
reader.raiseError("Not an online map source file");
}
_errorString = reader.error() ? QString("%1: %2").arg(reader.lineNumber())
.arg(reader.errorString()) : QString();
if (!map)
_errorString = QString("%1: %2").arg(reader.lineNumber())
.arg(reader.errorString());
else if (!map->isValid()) {
_errorString = map->errorString();
delete map; map = 0;
}
return !reader.error();
return map;
}

4
src/map/mapsource.h
View File

@ -11,13 +11,13 @@ class QXmlStreamReader;
class MapSource
{
public:
bool loadFile(const QString &path, Map **map);
Map *loadFile(const QString &path);
const QString &errorString() const {return _errorString;}
private:
RectC bounds(QXmlStreamReader &reader);
Range zooms(QXmlStreamReader &reader);
void map(QXmlStreamReader &reader, Map **map);
Map *map(QXmlStreamReader &reader);
QString _errorString;
};

2
src/map/offlinemap.h
View File

@ -41,7 +41,7 @@ public:
void unload();
bool isValid() const {return _valid;}
const QString &errorString() const {return _errorString;}
QString errorString() const {return _errorString;}
QPointF ll2pp(const Coordinates &c) const
{return _projection.ll2xy(c);}

128
src/map/onlinemap.cpp
View File

@ -1,5 +1,3 @@
#include <QFileInfo>
#include <QDir>
#include <QPainter>
#include "common/coordinates.h"
#include "common/rectc.h"
@ -41,45 +39,26 @@ static int scale2zoom(qreal scale)
return (int)log2(360.0/(scale * (qreal)TILE_SIZE));
}
static bool loadTileFile(Tile &tile, const QString &file)
{
if (!tile.pixmap().load(file)) {
qWarning("%s: error loading tile file\n", qPrintable(file));
return false;
}
return true;
}
Downloader *OnlineMap::downloader;
OnlineMap::OnlineMap(const QString &name, const QString &url,
const Range &zooms, const RectC &bounds, QObject *parent)
: Map(parent), _name(name), _url(url), _zooms(zooms), _bounds(bounds)
: Map(parent), _name(name), _zooms(zooms), _bounds(bounds)
{
_block = false;
_zoom = _zooms.max();
QString path = TILES_DIR + QString("/") + name;
if (!QDir().mkpath(path))
qWarning("Error creating tiles dir: %s\n", qPrintable(path));
_tileLoader = TileLoader(url, TILES_DIR + "/" + name);
}
void OnlineMap::load()
{
connect(downloader, SIGNAL(finished()), this, SLOT(emitLoaded()));
connect(TileLoader::downloader(), SIGNAL(finished()), this,
SLOT(emitLoaded()));
}
void OnlineMap::unload()
{
disconnect(downloader, SIGNAL(finished()), this, SLOT(emitLoaded()));
}
void OnlineMap::fillTile(Tile &tile)
{
tile.pixmap() = QPixmap(TILE_SIZE, TILE_SIZE);
tile.pixmap().fill(_backgroundColor);
disconnect(TileLoader::downloader(), SIGNAL(finished()), this,
SLOT(emitLoaded()));
}
void OnlineMap::emitLoaded()
@ -87,91 +66,6 @@ void OnlineMap::emitLoaded()
emit loaded();
}
void OnlineMap::loadTilesAsync(QList<Tile> &list)
{
QList<Download> dl;
for (int i = 0; i < list.size(); i++) {
Tile &t = list[i];
QString file = tileFile(t);
QFileInfo fi(file);
if (!fi.exists()) {
fillTile(t);
dl.append(Download(tileUrl(t), file));
} else
loadTileFile(t, file);
}
if (!dl.empty())
downloader->get(dl);
}
void OnlineMap::loadTilesSync(QList<Tile> &list)
{
QList<Download> dl;
for (int i = 0; i < list.size(); i++) {
Tile &t = list[i];
QString file = tileFile(t);
QFileInfo fi(file);
if (!fi.exists())
dl.append(Download(tileUrl(t), file));
else
loadTileFile(t, file);
}
if (dl.empty())
return;
QEventLoop wait;
connect(downloader, SIGNAL(finished()), &wait, SLOT(quit()));
if (downloader->get(dl))
wait.exec();
for (int i = 0; i < list.size(); i++) {
Tile &t = list[i];
if (t.pixmap().isNull()) {
QString file = tileFile(t);
QFileInfo fi(file);
if (!(fi.exists() && loadTileFile(t, file)))
fillTile(t);
}
}
}
QString OnlineMap::tileUrl(const Tile &tile) const
{
QString url(_url);
url.replace("$z", QString::number(tile.zoom()));
url.replace("$x", QString::number(tile.xy().x()));
url.replace("$y", QString::number(tile.xy().y()));
return url;
}
QString OnlineMap::tileFile(const Tile &tile) const
{
QString file = TILES_DIR + QString("/%1/%2-%3-%4").arg(name())
.arg(tile.zoom()).arg(tile.xy().x()).arg(tile.xy().y());
return file;
}
void OnlineMap::clearCache()
{
QString path = TILES_DIR + QString("/") + name();
QDir dir = QDir(path);
QStringList list = dir.entryList();
for (int i = 0; i < list.count(); i++)
dir.remove(list.at(i));
}
QRectF OnlineMap::bounds() const
{
return QRectF(ll2xy(_bounds.topLeft()), ll2xy(_bounds.bottomRight()));
@ -245,15 +139,19 @@ void OnlineMap::draw(QPainter *painter, const QRectF &rect)
tiles.append(Tile(QPoint(tile.x() + i, tile.y() + j), _zoom));
if (_block)
loadTilesSync(tiles);
_tileLoader.loadTilesSync(tiles);
else
loadTilesAsync(tiles);
_tileLoader.loadTilesAsync(tiles);
for (int i = 0; i < tiles.count(); i++) {
Tile &t = tiles[i];
QPoint tp(tl.x() + (t.xy().x() - tile.x()) * TILE_SIZE,
tl.y() + (t.xy().y() - tile.y()) * TILE_SIZE);
painter->drawPixmap(tp, t.pixmap());
if (t.pixmap().isNull())
painter->fillRect(QRect(tp, QSize(TILE_SIZE, TILE_SIZE)),
_backgroundColor);
else
painter->drawPixmap(tp, t.pixmap());
}
}

19
src/map/onlinemap.h
View File

@ -5,9 +5,7 @@
#include "common/range.h"
#include "common/rectc.h"
#include "map.h"
#include "tile.h"
class Downloader;
#include "tileloader.h"
class OnlineMap : public Map
{
@ -36,10 +34,7 @@ public:
void draw(QPainter *painter, const QRectF &rect);
void setBlockingMode(bool block) {_block = block;}
void clearCache();
static void setDownloader(Downloader *downloader)
{OnlineMap::downloader = downloader;}
void clearCache() {_tileLoader.clearCache();}
void load();
void unload();
@ -50,22 +45,14 @@ private slots:
private:
QPointF ll2xy(const Coordinates &c) const;
Coordinates xy2ll(const QPointF &p) const;
void fillTile(Tile &tile);
QString tileUrl(const Tile &tile) const;
QString tileFile(const Tile &tile) const;
void loadTilesAsync(QList<Tile> &list);
void loadTilesSync(QList<Tile> &list);
int limitZoom(int zoom) const;
TileLoader _tileLoader;
QString _name;
QString _url;
Range _zooms;
RectC _bounds;
int _zoom;
bool _block;
static Downloader *downloader;
};
#endif // ONLINEMAP_H

5
src/map/projection.h
View File

@ -77,9 +77,14 @@ public:
Projection &operator=(const Projection &p);
bool isNull() const {return (_gcs == 0 && _ct == 0 && _units.isNull());}
bool isValid() const {return (_gcs == 0 || _ct == 0 || _units.isNull());}
QPointF ll2xy(const Coordinates &c) const;
Coordinates xy2ll(const QPointF &p) const;
const LinearUnits &units() const {return _units;}
private:
const GCS * _gcs;
CT *_ct;

106
src/map/tileloader.cpp Normal file
View File

@ -0,0 +1,106 @@
#include <QDir>
#include <QFileInfo>
#include <QEventLoop>
#include "downloader.h"
#include "tileloader.h"
static bool loadTileFile(Tile &tile, const QString &file)
{
if (!tile.pixmap().load(file)) {
qWarning("%s: error loading tile file\n", qPrintable(file));
return false;
}
return true;
}
Downloader *TileLoader::_downloader = 0;
TileLoader::TileLoader(const QString &url, const QString &dir)
: _url(url), _dir(dir)
{
if (!QDir().mkpath(_dir))
qWarning("Error creating tiles dir: %s\n", qPrintable(_dir));
}
void TileLoader::loadTilesAsync(QList<Tile> &list)
{
QList<Download> dl;
for (int i = 0; i < list.size(); i++) {
Tile &t = list[i];
QString file = tileFile(t);
QFileInfo fi(file);
if (!fi.exists())
dl.append(Download(tileUrl(t), file));
else
loadTileFile(t, file);
}
if (!dl.empty())
_downloader->get(dl);
}
void TileLoader::loadTilesSync(QList<Tile> &list)
{
QList<Download> dl;
for (int i = 0; i < list.size(); i++) {
Tile &t = list[i];
QString file = tileFile(t);
QFileInfo fi(file);
if (!fi.exists())
dl.append(Download(tileUrl(t), file));
else
loadTileFile(t, file);
}
if (dl.empty())
return;
QEventLoop wait;
QObject::connect(_downloader, SIGNAL(finished()), &wait, SLOT(quit()));
if (_downloader->get(dl))
wait.exec();
for (int i = 0; i < list.size(); i++) {
Tile &t = list[i];
if (t.pixmap().isNull()) {
QString file = tileFile(t);
if (QFileInfo(file).exists())
loadTileFile(t, file);
}
}
}
void TileLoader::clearCache()
{
QDir dir = QDir(_dir);
QStringList list = dir.entryList();
for (int i = 0; i < list.count(); i++)
dir.remove(list.at(i));
}
QString TileLoader::tileUrl(const Tile &tile) const
{
QString url(_url);
url.replace("$z", QString::number(tile.zoom()));
url.replace("$x", QString::number(tile.xy().x()));
url.replace("$y", QString::number(tile.xy().y()));
return url;
}
QString TileLoader::tileFile(const Tile &tile) const
{
QString file = _dir + QString("/%1-%2-%3").arg(tile.zoom())
.arg(tile.xy().x()).arg(tile.xy().y());
return file;
}

33
src/map/tileloader.h Normal file
View File

@ -0,0 +1,33 @@
#ifndef TILELOADER_H
#define TILELOADER_H
#include <QString>
#include "tile.h"
#include "downloader.h"
class TileLoader
{
public:
TileLoader() {}
TileLoader(const QString &url, const QString &dir);
void loadTilesAsync(QList<Tile> &list);
void loadTilesSync(QList<Tile> &list);
void clearCache();
static Downloader *downloader() {return _downloader;}
static void setDownloader(Downloader *downloader)
{_downloader = downloader;}
private:
void fillTile(Tile &tile);
QString tileUrl(const Tile &tile) const;
QString tileFile(const Tile &tile) const;
QString _url;
QString _dir;
static Downloader *_downloader;
};
#endif // TILELOADER_Honlinemap

169
src/map/wmts.cpp Normal file
View File

@ -0,0 +1,169 @@
#include <QXmlStreamReader>
#include <QFile>
#include <QFileInfo>
#include <QEventLoop>
#include <QTextStream>
#include "downloader.h"
#include "pcs.h"
#include "wmts.h"
Downloader *WMTS::_downloader = 0;
bool WMTS::createProjection(const QString &crs)
{
QStringList list(crs.split(':'));
QString authority, code;
const PCS *pcs;
switch (list.size()) {
case 2:
authority = list.at(0);
code = list.at(1);
break;
case 7:
authority = list.at(4);
code = list.at(6);
break;
default:
return false;
}
if (authority != "EPSG")
return false;
if (!(pcs = PCS::pcs(code.toInt())))
return false;
_projection = Projection(pcs->gcs(), pcs->method(), pcs->setup(),
pcs->units());
return true;
}
void WMTS::tileMatrix(QXmlStreamReader &reader)
{
Zoom zoom;
while (reader.readNextStartElement()) {
if (reader.name() == "ScaleDenominator")
zoom.scaleDenominator = reader.readElementText().toDouble();
else if (reader.name() == "TopLeftCorner") {
QString str = reader.readElementText();
QTextStream(&str) >> zoom.topLeft.rx() >> zoom.topLeft.ry();
} else if (reader.name() == "TileWidth")
zoom.tile.setWidth(reader.readElementText().toInt());
else if (reader.name() == "TileHeight")
zoom.tile.setHeight(reader.readElementText().toInt());
else if (reader.name() == "MatrixWidth")
zoom.matrix.setWidth(reader.readElementText().toInt());
else if (reader.name() == "MatrixHeight")
zoom.matrix.setHeight(reader.readElementText().toInt());
else
reader.skipCurrentElement();
}
_zooms.append(zoom);
}
void WMTS::tileMatrixSet(QXmlStreamReader &reader, const QString &set)
{
QString id;
while (reader.readNextStartElement()) {
if (reader.name() == "Identifier")
id = reader.readElementText();
else if (reader.name() == "SupportedCRS" && id == set) {
if (!createProjection(reader.readElementText()))
reader.raiseError("Invalid/unknown CRS");
} else if (reader.name() == "TileMatrix" && id == set)
tileMatrix(reader);
else
reader.skipCurrentElement();
}
}
void WMTS::contents(QXmlStreamReader &reader, const QString &set)
{
while (reader.readNextStartElement()) {
if (reader.name() == "TileMatrixSet")
tileMatrixSet(reader, set);
else
reader.skipCurrentElement();
}
}
void WMTS::capabilities(QXmlStreamReader &reader, const QString &set)
{
while (reader.readNextStartElement()) {
if (reader.name() == "Contents")
contents(reader, set);
else
reader.skipCurrentElement();
}
}
bool WMTS::parseCapabilities(const QString &path, const QString &tileMatrixSet)
{
QFile file(path);
QXmlStreamReader reader;
if (!file.open(QFile::ReadOnly | QFile::Text)) {
_errorString = file.errorString();
return false;
}
reader.setDevice(&file);
if (reader.readNextStartElement()) {
if (reader.name() == "Capabilities")
capabilities(reader, tileMatrixSet);
else
reader.raiseError("Not a Capabilities XML file");
}
_errorString = reader.error() ? QString("%1:%2: %3").arg(path)
.arg(reader.lineNumber()).arg(reader.errorString()) : QString();
return reader.error() ? false : true;
}
bool WMTS::getCapabilities(const QString &url, const QString &file)
{
QList<Download> dl;
QString capabilitiesUrl = QString("%1?service=WMTS&Version=1.0.0"
"&request=GetCapabilities").arg(url);
dl.append(Download(capabilitiesUrl, file));
QEventLoop wait;
QObject::connect(_downloader, SIGNAL(finished()), &wait, SLOT(quit()));
if (_downloader->get(dl))
wait.exec();
if (QFileInfo(file).exists())
return true;
else {
_errorString = "Error downloading capabilities XML file";
return false;
}
}
bool WMTS::load(const QString &file, const QString &url,
const QString &tileMatrixSet)
{
if (!QFileInfo(file).exists())
if (!getCapabilities(url, file))
return false;
if (!parseCapabilities(file, tileMatrixSet))
return false;
if (_projection.isNull()) {
_errorString = "Missing CRS definition";
return false;
}
if (_zooms.isEmpty()) {
_errorString = "No tile matrix found";
return false;
}
return true;
}

50
src/map/wmts.h Normal file
View File

@ -0,0 +1,50 @@
#ifndef WMTS_H
#define WMTS_H
#include <QSize>
#include <QList>
#include "projection.h"
class QXmlStreamReader;
class Downloader;
class WMTS
{
public:
struct Zoom {
qreal scaleDenominator;
QPointF topLeft;
QSize tile;
QSize matrix;
};
bool load(const QString &path, const QString &url,
const QString &tileMatrixSet);
const QString &errorString() const {return _errorString;}
const QList<Zoom> &zooms() {return _zooms;}
const Projection &projection() {return _projection;}
static Downloader *downloader() {return _downloader;}
static void setDownloader(Downloader *downloader)
{_downloader = downloader;}
private:
bool createProjection(const QString &crs);
void tileMatrix(QXmlStreamReader &reader);
void tileMatrixSet(QXmlStreamReader &reader, const QString &set);
void contents(QXmlStreamReader &reader, const QString &set);
void capabilities(QXmlStreamReader &reader, const QString &set);
bool parseCapabilities(const QString &path, const QString &tileMatrixSet);
bool getCapabilities(const QString &url, const QString &file);
QList<Zoom> _zooms;
Projection _projection;
QString _errorString;
static Downloader *_downloader;
};
#endif // WMTS_H

203
src/map/wmtsmap.cpp Normal file
View File

@ -0,0 +1,203 @@
#include <QPainter>
#include "common/rectc.h"
#include "config.h"
#include "transform.h"
#include "wmts.h"
#include "wmtsmap.h"
#define CAPABILITIES_FILE "capabilities.xml"
WMTSMap::WMTSMap(const QString &name, const QString &url, const QString &format,
const QString &layer, const QString &style, const QString &tileMatrixSet,
QObject *parent) : Map(parent), _name(name), _url(url),
_tileMatrixSet(tileMatrixSet), _zoom(0), _valid(false)
{
QString dir(TILES_DIR + "/" + _name);
QString file = dir + "/" + CAPABILITIES_FILE;
QString tileUrl = QString("%1?service=WMTS&Version=1.0.0&request=GetTile"
"&Format=%2&Layer=%3&Style=%4&TileMatrixSet=%5&TileMatrix=$z&TileRow=$y"
"&TileCol=$x").arg(_url).arg(format).arg(layer).arg(style)
.arg(_tileMatrixSet);
_tileLoader = TileLoader(tileUrl, dir);
WMTS wmts;
if (!wmts.load(file, _url, _tileMatrixSet)) {
_errorString = wmts.errorString();
return;
}
_zooms = wmts.zooms();
_projection = wmts.projection();
updateTransform();
_block = false;
_valid = true;
}
qreal WMTSMap::sd2res(qreal scaleDenominator) const
{
return scaleDenominator * 0.28e-3 * _projection.units().fromMeters(1.0);
}
void WMTSMap::updateTransform()
{
const WMTS::Zoom &z = _zooms.at(_zoom);
ReferencePoint tl, br;
qreal pixelSpan = sd2res(z.scaleDenominator);
QPointF tileSpan(z.tile.width() * pixelSpan, z.tile.height() * pixelSpan);
QPointF bottomRight(z.topLeft.x() + tileSpan.x() * z.matrix.width(),
z.topLeft.y() - tileSpan.y() * z.matrix.height());
tl.xy = QPoint(0, 0);
tl.pp = z.topLeft;
br.xy = QPoint(z.tile.width() * z.matrix.width(),
z.tile.height() * z.matrix.height());
br.pp = bottomRight;
QList<ReferencePoint> points;
points << tl << br;
Transform tr(points);
_transform = tr.transform();
_inverted = _transform.inverted();
}
void WMTSMap::load()
{
connect(TileLoader::downloader(), SIGNAL(finished()), this,
SLOT(emitLoaded()));
}
void WMTSMap::unload()
{
disconnect(TileLoader::downloader(), SIGNAL(finished()), this,
SLOT(emitLoaded()));
}
void WMTSMap::clearCache()
{
QString dir(TILES_DIR + "/" + _name);
QString file = dir + "/" + CAPABILITIES_FILE;
_tileLoader.clearCache();
WMTS wmts;
if (!wmts.load(file, _url, _tileMatrixSet))
return;
_zooms = wmts.zooms();
_projection = wmts.projection();
if (_zoom >= _zooms.size())
_zoom = _zooms.size() - 1;
updateTransform();
}
void WMTSMap::emitLoaded()
{
emit loaded();
}
QRectF WMTSMap::bounds() const
{
const WMTS::Zoom &z = _zooms.at(_zoom);
return QRectF(QPointF(0, 0), QSize(z.tile.width() * z.matrix.width(),
z.tile.height() * z.matrix.height()));
}
qreal WMTSMap::zoomFit(const QSize &size, const RectC &br)
{
_zoom = 0;
if (br.isValid()) {
QRectF tbr(_projection.ll2xy(br.topLeft()),
_projection.ll2xy(br.bottomRight()));
QPointF sc(tbr.width() / size.width(), tbr.height() / size.height());
qreal resolution = qMax(qAbs(sc.x()), qAbs(sc.y()));
for (int i = 0; i < _zooms.size(); i++) {
if (sd2res(_zooms.at(i).scaleDenominator) < resolution)
break;
_zoom = i;
}
}
updateTransform();
return _zoom;
}
qreal WMTSMap::zoomFit(qreal resolution, const Coordinates &c)
{
Q_UNUSED(c);
_zoom = 0;
for (int i = 0; i < _zooms.size(); i++) {
if (sd2res(_zooms.at(i).scaleDenominator) < resolution)
break;
_zoom = i;
}
updateTransform();
return _zoom;
}
qreal WMTSMap::resolution(const QPointF &p) const
{
Q_UNUSED(p);
return sd2res(_zooms.at(_zoom).scaleDenominator);
}
qreal WMTSMap::zoomIn()
{
_zoom = qMin(_zoom + 1, _zooms.size() - 1);
updateTransform();
return _zoom;
}
qreal WMTSMap::zoomOut()
{
_zoom = qMax(_zoom - 1, 0);
updateTransform();
return _zoom;
}
void WMTSMap::draw(QPainter *painter, const QRectF &rect)
{
const WMTS::Zoom &z = _zooms.at(_zoom);
QPoint tl = QPoint((int)floor(rect.left() / (qreal)z.tile.width()),
(int)floor(rect.top() / (qreal)z.tile.height()));
QPoint br = QPoint((int)floor(rect.right() / (qreal)z.tile.width()),
(int)floor(rect.bottom() / (qreal)z.tile.height()));
QList<Tile> tiles;
for (int i = tl.x(); i <= br.x(); i++)
for (int j = tl.y(); j <= br.y(); j++)
tiles.append(Tile(QPoint(i, j), _zoom));
if (_block)
_tileLoader.loadTilesSync(tiles);
else
_tileLoader.loadTilesAsync(tiles);
for (int i = 0; i < tiles.count(); i++) {
Tile &t = tiles[i];
QPoint tp(t.xy().x() * z.tile.width(), t.xy().y() * z.tile.height());
if (t.pixmap().isNull())
painter->fillRect(QRect(tp, z.tile), _backgroundColor);
else
painter->drawPixmap(tp, t.pixmap());
}
}
QPointF WMTSMap::ll2xy(const Coordinates &c) const
{
return _transform.map(_projection.ll2xy(c));
}
Coordinates WMTSMap::xy2ll(const QPointF &p) const
{
return _projection.xy2ll(_inverted.map(p));
}

69
src/map/wmtsmap.h Normal file
View File

@ -0,0 +1,69 @@
#ifndef WMTSMAP_H
#define WMTSMAP_H
#include <QTransform>
#include "projection.h"
#include "map.h"
#include "wmts.h"
#include "tileloader.h"
class WMTSMap : public Map
{
Q_OBJECT
public:
WMTSMap(const QString &name, const QString &url, const QString &format,
const QString &layer, const QString &style, const QString &tileMatrixSet,
QObject *parent = 0);
const QString &name() const {return _name;}
QRectF bounds() const;
qreal resolution(const QPointF &p) const;
qreal zoom() const {return _zoom;}
qreal zoomFit(const QSize &size, const RectC &br);
qreal zoomFit(qreal resolution, const Coordinates &c);
qreal zoomIn();
qreal zoomOut();
QPointF ll2xy(const Coordinates &c)
{return static_cast<const WMTSMap &>(*this).ll2xy(c);}
Coordinates xy2ll(const QPointF &p)
{return static_cast<const WMTSMap &>(*this).xy2ll(p);}
void draw(QPainter *painter, const QRectF &rect);
void setBlockingMode(bool block) {_block = block;}
void clearCache();
void load();
void unload();
bool isValid() const {return _valid;}
QString errorString() const {return _errorString;}
private slots:
void emitLoaded();
private:
qreal sd2res(qreal scaleDenominator) const;
void updateTransform();
QPointF ll2xy(const Coordinates &c) const;
Coordinates xy2ll(const QPointF &p) const;
QString _name, _url, _tileMatrixSet;
TileLoader _tileLoader;
QList<WMTS::Zoom> _zooms;
Projection _projection;
QTransform _transform, _inverted;
int _zoom;
bool _block;
bool _valid;
QString _errorString;
};
#endif // WMTSMAP_H